java項目啓動tomcat時報了下面這個錯誤
信息: Illegal access: this web application instance has been stopped already. Could not load com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
java.lang.IllegalStateExceptionat org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1600)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
at javax.xml.parsers.FactoryFinder.getProviderClass(FactoryFinder.java:112)
at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:178)
at javax.xml.parsers.FactoryFinder.newInstance(FactoryFinder.java:147)
at javax.xml.parsers.FactoryFinder.find(FactoryFinder.java:265)
at javax.xml.parsers.SAXParserFactory.newInstance(SAXParserFactory.java:126)
at org.dom4j.io.JAXPHelper.createXMLReader(JAXPHelper.java:46)
at org.dom4j.io.SAXHelper.createXMLReaderViaJAXP(SAXHelper.java:125)
at org.dom4j.io.SAXHelper.createXMLReader(SAXHelper.java:78)
at org.dom4j.io.SAXReader.createXMLReader(SAXReader.java:894)
at org.dom4j.io.SAXReader.getXMLReader(SAXReader.java:715)
at org.dom4j.io.SAXReader.read(SAXReader.java:435)
at org.dom4j.io.SAXReader.read(SAXReader.java:365)
信息: Illegal access: this web application instance has been stopped already. Could not load com.sun.org.apache.xerces.internal.impl.dv.dtd.DTDDVFactoryImpl. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
java.lang.IllegalStateException
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1600)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
at com.sun.org.apache.xerces.internal.utils.ObjectFactory.findProviderClass(ObjectFactory.java:322)
at com.sun.org.apache.xerces.internal.utils.ObjectFactory.newInstance(ObjectFactory.java:270)
at com.sun.org.apache.xerces.internal.utils.ObjectFactory.newInstance(ObjectFactory.java:256)
at com.sun.org.apache.xerces.internal.impl.dv.DTDDVFactory.getInstance(DTDDVFactory.java:63)
at com.sun.org.apache.xerces.internal.impl.dv.DTDDVFactory.getInstance(DTDDVFactory.java:49)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.<init>(XML11Configuration.java:578)
at com.sun.org.apache.xerces.internal.parsers.XIncludeAwareParserConfiguration.<init>(XIncludeAwareParserConfiguration.java:130)
at com.sun.org.apache.xerces.internal.parsers.XIncludeAwareParserConfiguration.<init>(XIncludeAwareParserConfiguration.java:91)
at com.sun.org.apache.xerces.internal.parsers.SAXParser.<init>(SAXParser.java:111)
at com.sun.org.apache.xerces.internal.parsers.SAXParser.<init>(SAXParser.java:96)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.<init>(SAXParserImpl.java:411)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.<init>(SAXParserImpl.java:136)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl.newSAXParser(SAXParserFactoryImpl.java:81)
at org.dom4j.io.JAXPHelper.createXMLReader(JAXPHelper.java:50)
at org.dom4j.io.SAXHelper.createXMLReaderViaJAXP(SAXHelper.java:125)
at org.dom4j.io.SAXHelper.createXMLReader(SAXHelper.java:78)
at org.dom4j.io.SAXReader.createXMLReader(SAXReader.java:894)
at org.dom4j.io.SAXReader.getXMLReader(SAXReader.java:715)
at org.dom4j.io.SAXReader.read(SAXReader.java:435)
at org.dom4j.io.SAXReader.read(SAXReader.java:365)
出現這個報錯主要有3種可能
1、項目中的配置文件配置錯誤,配置文件錯誤有時會在報錯中提示有時不會，沒有具體提示的時候可以去最近更改過的配置文件中查找
2、web.xml 中啓動任務中的報錯，這個可以根據報錯提示去相應的啓動任務中查找
3、tomcat非正常關閉導致，通過重啓tomcat服務可以解決
